Swingletree-hook.



WITNESSES H. J. DINGFBLDER. SWINGLETREE HOOK.

APPLIOATION FILED MAR. 19, 1913..

Patented Dec. 30, 1913.

[NVENTOR M Atlorney COLUMBIA PLANOGRAPH 50., WASHINGTON. D. c.

air

HERMAN J. DINGFELDER, OF FOUNTAIN CITY, WISCONSIN.

SWINGLETR-EE-HOOK.

1/ b (ZZZ whom it may concern Be it known that I, HERMAN J. Dino rnLonR,a citizen of the United States, and a. resident of Fountain City, in thecounty of Buffalo and State of Wisconsin, have invented certain new anduseful Improvements in Swingletree-I-Iooks, of which the following is aspecification, reference being had to the accompanying drawings.

This invention relates to certain new and useful improvements in swingletree hooks; and the object of my invention is to provide a safetyswingle tree hook so constructed that the trace or tug cannotaccidentally become detached from the swingle tree hook.

A further object is to provide a safety swingle tree hook of a simpleand inexpensive nature and of a durable construction, arranged so thatwhen released the tug can be expeditiously removed therefrom.

With these and other objects in View the present invention consists inthe combination and arrangement of parts as will be hereinafter morefully described and finally pointed out in the appended claims, it beingfurther understood that changes in the specific structure shown anddescribed may be made within the scope of the claims, without departingfrom the spirit of the invention.

In the accompanying drawings forming a part of this specification and inwhich like numerals of reference indicate similar parts in the severalviews: Figure 1, shows a perspective view of a swingle tree providedwith safety hooks embodying my invention. Fig. 2, is a top view withparts broken away of one of the hooks disclosing the same in releasedcondition in dotted out-line.

In my present invention I provide a swingle tree hook including twocounterpart half collars 4, 4., each half collar being provided with aforward apertured ear 6, and a rear apertured ear 5. These half collarsare arranged to be clamped upon the end of the swingle tree 3. In Fig.1, of the drawings. I have shown a broken portion of one of the shaftsl, with the connecting bar A, carrying the king bolt 2, upon which theswingle tree 3, is pivotally held. The half collars 4, are clamped uponthe end of the swingle tree by means of the bolts 7 and 8.

Pivotally held between the ears 5, upon the bolt 7 is the operatinglever 10, ending 1n the loop 12. This loop 12, is arranged for coactionwith the guide pin 13, which passes through the swingle tree and is pro-Specification of Letters Patent.

Application filed. Marc-l1 19, 1913.

Patented Dec. 30, 1913. Serial No. 755,501.

vided with the stop nut 14, a spring 15, being interposed between theswingle tree and the loop 12, to normally force this loop against thestop nut 14:, as shown in the drawings.

Pivotally held upon the bolt 8, is the swingle tree hook 16, having thestem 17, which extends across the end of the swingle tree 3, andterminates adjacent to the rear ears 5, the instrumentalities being soarranged that in the normal working position of the hook the stem 17, atits end engages within the eye 9, as shown in Fig. 2. The half collars4, are provided with the lip extensions 18, which are arranged toproject slightly beyond the end of the swingle tree 8.

The tug 4, is arranged to be brought into engagement with the swingletree book 16. hen it is desired to release the tug the op erator simplydepresses the lever 10, which allows the hook stem 17, to escape fromthe eye 9. In this position the hook can be readily thrown outward, asshown in dotted lines in Fig. 2, so that the tug will escape from thehook.

These safety swingle tree hooks are made in various sizes and are simpleand comparatively inexpensive in construction, and both durable andeflicient in operation, while the tug can be secured to the hook orreleased therefrom with ease, accuracy and despatch.

Having thus described my said invention, what I claim as new and desireto secure by United States Letters Patent is:

1. A swingle tree hook having in combination, two counterpart halfcollars each end-- ing 1n a forward and a rear apertured ear, of a boltpassin through said forward ears, ahook pivotalfy held upon said boltbetween said .ears having a stem terminating adja cent to said rearears, a bolt passing through said rear ears, a lever upon said rear boltheld between said ears ending in an eye at one end arranged for coactionwith said hook stem, said lever ending in a loop at the opposite end, aguide pin passing through said loop, a stop at the end of said pin, anda spring to normally force said loop against said stop, said eyenormally engaging said hook stem, as and for the purpose set forth.

2. The combination with a swingle tree, of two counterpart half collarseach ending in a forward and a rear apertured ear, of bolts passingthrough said apertured ears to clamp said half collars upon the end ofsaid swingle tree, a hook pivotally held upon said forward bolt endingin a stem terminating said loop outward against said stop all ar- 10 adaCent to said rear ears said stem crossing ranged as and for the purposeset forth.

the end of said swingle tree a lever pivotally In testimony whereof Iafiix my signature, held ulpon saidrear lopllt ellldlltlg in awn1 eye inthe presence of two Witnesses.

ing a loop at the opposite end, a guide pin HERMA} DI} GFELDER' securedto said swingle tree passing through lVitnesses:

said loop, a stop at the end of said pin, and ROMEO KAsrn,

a spring upon said pin to normally force CHARLES F. PRUSSING.

Copies 01' this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, I). G.

